Dental Anatomy
Mock Exam
Course Introduction
Dental Anatomy is a foundational course that explores the morphology, structure, and function of human teeth. Students learn to identify and differentiate between various types of teeth, understand their developmental stages, and recognize anatomical landmarks crucial for dental procedures. The course covers both primary and permanent dentition, emphasizing the form and alignment within the dental arches. By integrating theoretical knowledge with practical exercises such as tooth carving and identification, students gain essential skills needed for clinical practice and the effective restoration of dental form and function.
Recommended Textbook
Essentials of Oral Histology and Embryology A Clinical Approach 4th Edition by Daniel J. Chiego
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16 Chapters
514 Verified Questions
514 Flashcards
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Chapter 1: Development and Structure of Cells and Tissues
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34 Verified Questions
34 Flashcards
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Sample Questions
Q1) Myotome produces ___________ tissue.
Answer: muscle
Q2) Blood cells begin to form in the __________ __________ at weeks of development.
Answer: yolk sac
Q3) The foramen ovale closes during the third week of prenatal life.
A)True
B)False
Answer: False
Q4) The _______ provides an ideal environment for the implantation and growth of the embryo.
A) ovary
B) uterine tube
C) myometrium
D) endometrium
Answer: D
Q5) The information in mRNA is translated by ribosomes located on the surface of the rough endoplasmic reticulum.
A)True
B)False
Answer: True
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Chapter 2: Structure and Function of Cells, Tissues, and Organs
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Sample Questions
Q1) Impulses conducted from the periphery of the body (e.g.,muscles,glands)to the central nervous system (CNS)are conducted through which system?
A) Motor
B) Somatic
C) Afferent
D) Autonomic
Answer: C
Q2) The three functions of the _____ _____ are to absorb nutrition,dehydrate food,and compress food into solid waste.
Answer: large intestine
Q3) Which body system relies on neural stimuli to function?
A) Vascular
B) Digestive
C) Endocrine
D) Respiratory
Answer: C
Q4) List the components of the central nervous system.
Answer: Brain,spinal cord
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Chapter 3: Development of the Oral Facial Region
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Sample Questions
Q1) The superior parathyroid develops from the ________ pharyngeal pouch,whereas the inferior parathyroid develops from the _______.
A) fourth, third
B) third, fourth
C) fifth, second
D) second, fifth
Answer: A
Q2) The thymus gland arises from which branchial arch?
A) I
B) II
C) III
D) IV
Answer: C
Q3) Which defines the term synchondrosis?
A) The rod-shaped cartilage of the hyoid arch
B) The center of all growth and function in the mandible
C) A band of connective tissue containing osteogenic cells
D) A union of two bones that have been separated by cartilage
Answer: D
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Page 5
Chapter 4: Development of the Face and Palate
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Sample Questions
Q1) An opening of a nostril into the oral cavity is classified as an incomplete cleft lip.
A)True
B)False
Q2) Which muscle grows around the oral pit in the sixth prenatal week?
A) Buccinator
B) Mylohyoid
C) Orbicularis oris
D) Zygomatic major
Q3) Epithelial cysts occasionally arise along the path of thyroid descent.
A)True
B)False
Q4) The thyroid gland descends to the front of the trachea,attached to the tongue by the thyroglossal ________.
A) duct
B) cyst
C) fistula
D) swelling
Q5) Identity two examples of apoptosis in prenatal development.
Q6) The _________ separates the oral and nasal cavities.
Page 6
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Chapter 5: Development of Teeth
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Sample Questions
Q1) Bone,dentin,cementum and enamel grow through incremental deposition.
A)True
B)False
Q2) Which cells of the enamel organ assist ameloblasts in forming enamel?
A) Stellate reticulum
B) Stratum intermedium
C) Inner enamel epithelial
D) Outer enamel epithelial
Q3) Which tissue does not support the dentition?
A) Enamel
B) Cementum
C) Alveolar bone
D) Periodontal ligament
Q4) Tomes processes develop in which stage of ameloblast differentiation?
A) Secretion
B) Protection
C) Maturation
D) Organization
Q5) _________ bone forms between the roots of multirooted teeth.
Q6) The periodontal ligament attaches which two surfaces?
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Chapter 6: Eruption and Shedding of the Teeth
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Sample Questions
Q1) Which of the following is the origin of osteoclasts?
A) Fibroclasts
B) Monocytes
C) Amino acids
D) Root resorption
Q2) Special _______ cells destroy collagen fibers by ingestion.
A) fibroblast
B) osteoclast
C) osteoblast
D) amino acid
Q3) The reduced enamel epithelium fuses with the oral epithelium during prefunctional eruption.
A)True
B)False
Q4) The formation of the eruption ____________ is necessary for tooth eruption.
Q5) During eruption,the epithelial attachment shifts to the cervical area.
A)True
B)False
Q6) Fusion of the tooth (reduced enamel epithelium)with the oral epithelium forms the __________ epithelium.
Page 8
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Chapter 7: Enamel
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Sample Questions
Q1) Enamel lamellae are not tubular defects,but leaflike tracts.
A)True
B)False
Q2) Prismless enamel is characterized by numerous and pronounced Hunter-Schreger bands.
A)True
B)False
Q3) A tuft is a developmental defect in enamel filled with _________ material.
Q4) Enamel is an impermeable tissue.
A)True
B)False
Q5) Ameloblasts deposit 4 µm of enamel rods daily.
A)True
B)False
Q6) The surface of an enamel rod is called the ______ _______.
Q7) Which statement is true?
A) Tubular defects are associated with enamel lamellae.
B) Lamellae provide increased resistance to dental caries.
C) Breathing cold air is a risk factor in developing enamel lamellae.
D) Enamel lamellae are microscopic cracks in the surface of enamel.
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Chapter 8: Dentin
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Sample Questions
Q1) Secondary dentin is deposited more quickly than primary dentin.
A)True
B)False
Q2) Dentinal tubules contain odontoblast processes,nerve terminals,and dentinal fluid.
A)True
B)False
Q3) Mineralized tubules are associated with which type of dentin?
A) Mantle
B) Sclerotic
C) Reparative
D) Secondary
Q4) Which type of dentin borders the pulp?
A) Globular
B) Predentin
C) Reactionary
D) Circumpulpal
Q5) _________ dentin forms when newly recruited odontoblasts begin depositing dentin.
Q6) Incremental lines are also known as _______ _________.
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Chapter 9: Dental Pulp
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Sample Questions
Q1) Pulp stones only occur in erupted teeth.
A)True
B)False
Q2) Coronal pulp is much smaller than root pulp.
A)True
B)False
Q3) Tight junctional complexes are communication openings between odontoblasts that transmit electrical impulses and small molecules.
A)True
B)False
Q4) Pulpal cells ___________ with age or trauma.
A) increase
B) decrease
C) disappear
D) stay the same
Q5) Odontoblasts are the second most prevalent type of cell found in the pulp.
A)True
B)False
Q6) List five functions of pulp tissue.
Q7) The largest blood vessels found in the dental pulp are __________.
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Chapter 10: Cementum
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Sample Questions
Q1) Cementum resorption is a characteristic of aging cementum.
A)True
B)False
Q2) Some __________ have long processes that lie in canaliculi.
A) lacunae
B) cementicles
C) cementocytes
D) collagen fibers
Q3) Inner root sheath cells form the cellular-acellular cementum.
A)True
B)False
Q4) Why is cementum insensitive to pain?
A) Cementum is more permeable than dentin.
B) Dentin forms more quickly than cementum.
C) Cells deep within the cementum are less active.
D) Cementum has no nerve or blood vessel innervation.
Q5) Cementum is a lustrous pale yellow.
A)True
B)False
Q6) Aging cementum may obstruct the ______ _______.
Page 12
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Chapter 11: Periodontium: Periodontal Ligament
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Sample Questions
Q1) The primary function of the periodontal ligament is to do which of the following?
A) Support the teeth.
B) Provide nutrition.
C) Transmit neural input.
D) Protect the cementum.
Q2) Interstitial spaces contain _______ _______ and nerve trunks that maintain the vitality of the periodontal ligament (PDL).
Q3) The most important function of the periodontal ligament is to sense movement.
A)True
B)False
Q4) ___________ stem from monocytes within the blood vascular system.
Q5) Epithelial rests always occur along the root surface.
A)True
B)False
Q6) Which of the following best defines epithelial rest?
A) Diminished functional activity caused by aging
B) A decrease in the production of epithelial cells
C) A marking created by deposition of cementum
D) A mass of cells in the remnants of the root sheath
Page 13
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Chapter 12: Periodontium: Alveolar Process and Cementum
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Sample Questions
Q1) Mesial drift is a significant occurrence during the deciduous dentition period.
A)True
B)False
Q2) Hyalinization of the periodontal ligament is caused by which of the following?
A) Mesial drift
B) Traumatic compression
C) Eruption of permanent teeth
D) Gradual orthodontic movement
Q3) The size difference between a primary tooth its permanent successor is the leeway space.
A)True
B)False
Q4) Tooth loss causes loss of periodontal fibers,as well as loss of _______ ________.
Q5) Aged alveolar bone lacunae are filled with cementocytes.
A)True
B)False
Q6) Once formed,fibers attached to the cementum cannot change.
A)True
B)False
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Chapter 13: Temporomandibular Joint
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Sample Questions
Q1) The lateral pterygoid muscle does which of the following?
A) Retracts the mandible
B) Protracts and elevates the mandible
C) Elevates the mandible and clenches the teeth
D) Protrudes the mandible and pulls the articular disk forward
Q2) Which ligament attaches to the lateral part of the disk?
A) Stylohyoid
B) Stylomandibular
C) Sphenomandibular
D) Temporomandibular
Q3) When the mouth opens,each condylar head slides along the articular ________.
A) pad
B) fossa
C) plane
D) eminence
Q4) The postnatal condylar head is a thick band of ___________.
Q5) Name the two movements of the TMJ.
Q6) Identify the four muscles of mastication.
Q7) Which branches of the trigeminal nerve innervate the TMJ?
Page 15
Q8) Name the four types of nerve endings in the TMJ.
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Chapter 14: Oral Mucosa
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Sample Questions
Q1) Nonkeratinocytes constitute about ______ of the mucosal cell population.
A) 5%
B) 10%
C) 20%
D) 50%
Q2) Nonkeratinocytes are also known as __________ cells.
Q3) Which papillae do not house taste buds?
A) Foliate
B) Filiform
C) Fungiform
D) Circumvallate
Q4) The three types of nonkeratinized cells are Langerhans,Merkel,and Fordyce.
A)True
B)False
Q5) During inflammation,lymphocytes and leukocytes can migrate into the gingival epithelium.
A)True
B)False
Q6) Name the four types of papillae found on the tongue.
Q7) Name the five taste modalities of the oral cavity.
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Chapter 15: Salivary Glands and Tonsils
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Sample Questions
Q1) A tubal tonsil is which of the following?
A) An ectopic tonsil located near a eustachian tube
B) A tonsil containing epithelial folds that double over into tubes
C) An infected tonsil that must be drained through the use of tubes
D) Tonsillar tissue that grows around other nearby glands in a tubular shape
Q2) Serous acinar cells secrete into the lumen of the acinus and then drain directly into intercalated ducts.
A)True
B)False
Q3) The _______________ tonsil is also known as the adenoid.
Q4) All salivary glands can be classified as _______________.
A) buccal, labial, or mixed
B) serous, mucous, or mixed
C) parotid, submandibular, or sublingual
D) palatine, glossopalatine, or sublingual
Q5) The duct system consists of secretory and ____________ portions.
Q6) Tonsils contain cells that secrete saliva.
A)True
B)False
Q7) Name the three major salivary glands.
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Chapter 16: Biofilms
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Sample Questions
Q1) The dark color of supragingival calculus is attributed to which of the following?
A) Calcium
B) Hydroxyapatite
C) Organic skeletons
D) Serum and blood pigments
Q2) Which of the following is the best definition for plaque?
A) A type of gingival inflammation
B) A stonelike concretion formed on the teeth
C) A bacterial biofilm on the surface of the teeth
D) An acellular thin film deposited on the surface of teeth from salivary proteins
Q3) Which of the following forms the primary cuticle?
A) Fibroblasts
B) Ameloblasts
C) Odontoblasts
D) Cementocytes
Q4) Dental plaque is characterized as a ________.
Q5) ____________ produce acids that can demineralize the surface of enamel.
Q6) Which disclosing solution will not permanently discolor composite restorations?
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